Re: [OMPI users] Need Source Code MPI

2011-06-23 Thread Vasiliy G Tolstov
On Wed, 2011-06-22 at 20:04 +0700, makh...@student.eepis-its.edu wrote: > Hi, > > I need help for my research. I need source code of decrypt password using > mpi c and permutation using mpi c. Any one have or know where I can get? > > Thank you for your help

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Josh Hursey
I wonder if this is related to memory pinning. Can you try turning off the leave pinned, and see if the problem persists (this may affect performance, but should avoid the crash): mpirun ... --mca mpi_leave_pinned 0 ... Also it looks like Smoky has a slightly newer version of the 1.4 branch

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Mathieu Gontier
Hello, Thank for the answer. I am testing with OpenMPI-1.4.3: my computation is queuing. But I did not read anything obvious related to my issue. Have you read something which could solve it? I am going to submit my computation with --mca mpi_leave_pinned 0, but do you have any idea how it

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Ralph Castain
One possibility: if you increase the number of processes in the job, and they all interconnect, then the IB interface can (I believe) run out of memory at some point. IIRC, the answer was to reduce the size of the QPs so that you could support a larger number of them. You should find info

[OMPI users] File seeking with shared filepointer issues

2011-06-23 Thread Christian Anonymous
I'm having some issues with MPI_File_seek_shared. Consider the following small test C++ program #include #include #define PATH "simdata.bin" using namespace std; int ThisTask; int main(int argc, char *argv[]) { MPI_Init(,); /* Initialize MPI */ MPI_Comm_rank(MPI_COMM_WORLD,); MPI_File

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Mathieu Gontier
Hi, Thanks for your answer. It makes sense. Sorry if my question seems silly, but what does QP mean? It is difficult to read the FAQ without knowing that! Thanks. On 06/23/2011 04:00 PM, Ralph Castain wrote: One possibility: if you increase the number of processes in the job, and they all

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Samuel K. Gutierrez
Hi, What happens when you don't run with per-peer queue pairs? Try: -mca btl_openib_receive_queues S,4096,128:S,12288,128:S,65536,128 -- Samuel K. Gutierrez Los Alamos National Laborator On Jun 23, 2011, at 7:56 AM, Mathieu Gontier wrote: > Hello, > > Thank for the answer. > I am testing

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Samuel K. Gutierrez
Hi, QP = Queue Pair Here are a couple of nice FAQ entries that I find useful. http://www.open-mpi.org/faq/?category=openfabrics And videos: http://www.open-mpi.org/video/?category=openfabrics -- Samuel K. Gutierrez Los Alamos National Laboratory On Jun 23, 2011, at 8:22 AM, Mathieu Gontier

Re: [OMPI users] [ompi-1.4.2] Infiniband issue on smoky @ ornl

2011-06-23 Thread Mathieu Gontier
Dear all, Thanks a lot for your support. I only had time to test one today, but it seems the option --mca mpi_leave_pinned 0 works on my case. I will go further next week, but for the moment, I can submit my computation. Thanks a lot for your help. On 06/23/2011 03:56 PM, Mathieu Gontier